Save to Drive is an extension for the Chrome browser which allows you to save any link, image, HTML5 video or audio directly to your Google Drive account with a simple right-click. However flash audio and video is not supported. Of course you have to be signed in your Google account for this to work.
Install Save to Drive and right click for an example on an image. Select "Save image to Google Drive" from the context menu and the saving process witll begin immediatelly. A desktop notification tells you when the save process starts and stays open until it completes. Unfortunatelly you cannont queue multiple files but maybe this will be added in the future.